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" Author: Yining <zhang.yining@gmail.com>
" Description: ruff as linter for python files
call ale#Set('python_ruff_executable', 'ruff')
call ale#Set('python_ruff_options', '')
call ale#Set('python_ruff_use_global', get(g:, 'ale_use_global_executables', 0))
call ale#Set('python_ruff_change_directory', 1)
call ale#Set('python_ruff_auto_pipenv', 0)
call ale#Set('python_ruff_auto_poetry', 0)
call ale#fix#registry#Add('ruff',
\ 'ale#fixers#ruff#Fix',
\ ['python'],
\ 'A python linter/fixer for Python written in Rust'
\)
function! ale_linters#python#ruff#GetExecutable(buffer) abort
if (ale#Var(a:buffer, 'python_auto_pipenv') || ale#Var(a:buffer, 'python_ruff_auto_pipenv'))
\ && ale#python#PipenvPresent(a:buffer)
return 'pipenv'
endif
if (ale#Var(a:buffer, 'python_auto_poetry') || ale#Var(a:buffer, 'python_ruff_auto_poetry'))
\ && ale#python#PoetryPresent(a:buffer)
return 'poetry'
endif
return ale#python#FindExecutable(a:buffer, 'python_ruff', ['ruff'])
endfunction
function! ale_linters#python#ruff#GetCwd(buffer) abort
if ale#Var(a:buffer, 'python_ruff_change_directory')
" Run from project root if found, else from buffer dir.
let l:project_root = ale#python#FindProjectRoot(a:buffer)
return !empty(l:project_root) ? l:project_root : '%s:h'
endif
return ''
endfunction
function! ale_linters#python#ruff#GetCommand(buffer, version) abort
let l:executable = ale_linters#python#ruff#GetExecutable(a:buffer)
let l:exec_args = l:executable =~? 'pipenv\|poetry$'
\ ? ' run ruff'
\ : ''
" NOTE: ruff version `0.0.69` supports liniting input from stdin
return ale#Escape(l:executable) . l:exec_args
\ . ale#Pad(ale#Var(a:buffer, 'python_ruff_options'))
\ . ' --format text'
\ . (ale#semver#GTE(a:version, [0, 0, 69]) ? ' --stdin-filename %s -' : ' %s')
endfunction
function! ale_linters#python#ruff#Handle(buffer, lines) abort
"Example: path/to/file.py:10:5: E999 SyntaxError: unexpected indent
let l:pattern = '\v^[a-zA-Z]?:?[^:]+:(\d+):(\d+)?:? (.+)$'
let l:output = []
for l:match in ale#util#GetMatches(a:lines, l:pattern)
call add(l:output, {
\ 'lnum': l:match[1] + 0,
\ 'col': l:match[2] + 0,
\ 'text': l:match[3],
\})
endfor
return l:output
endfunction
call ale#linter#Define('python', {
\ 'name': 'ruff',
\ 'executable': function('ale_linters#python#ruff#GetExecutable'),
\ 'cwd': function('ale_linters#python#ruff#GetCwd'),
\ 'command': {buffer -> ale#semver#RunWithVersionCheck(
\ buffer,
\ ale_linters#python#ruff#GetExecutable(buffer),
\ '%e --version',
\ function('ale_linters#python#ruff#GetCommand'),
\ )},
\ 'callback': 'ale_linters#python#ruff#Handle',
\ 'output_stream': 'both',
\ 'read_buffer': 1,
\})
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